15561560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{373}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 40392000

約数和(自身を除く): 24830440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 373, 596, 745, 746, 1043, 1192, 1490, 1492, 1865, 2086, 2611, 2980, 2984, 3730, 4172, 5215, 5222, 5960, 7460, 8344, 10430, 10444, 13055, 14920, 20860, 20888, 26110, 41720, 52220, 55577, 104440, 111154, 222308, 277885, 389039, 444616, 555770, 778078, 1111540, 1556156, 1945195, 2223080, 3112312, 3890390, 7780780, 15561560]

約数ペア:

[(1, 15561560), (2, 7780780), (4, 3890390), (5, 3112312), (7, 2223080), (8, 1945195), (10, 1556156), (14, 1111540), (20, 778078), (28, 555770), (35, 444616), (40, 389039), (56, 277885), (70, 222308), (140, 111154), (149, 104440), (280, 55577), (298, 52220), (373, 41720), (596, 26110), (745, 20888), (746, 20860), (1043, 14920), (1192, 13055), (1490, 10444), (1492, 10430), (1865, 8344), (2086, 7460), (2611, 5960), (2980, 5222), (2984, 5215), (3730, 4172)]